What is the diameter of a 7 m length of tungsten wire whose resistance is 3 ohms? Give your answer in mm to 3 decimal places. Your Answer: Answer

Q: What is the output voltage of a 3.00-V lithium cell in a digital wristwatch that draws 0.660 mA, if…

A:

Q: Two resistors R¡ = 20 N and R2 = 40 N are connected in series, what is the net resistance?

A: In a series resistor combination of n resistors, if the value of resistance of each resistor is…

Q: Consider the diagram in Fig 1a. Find the equivalent resistance if R1 = 6 ohms, R2 = 4 ohms and R3 =…

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Q: What is the total resistance of two resistors, R1 = 4.6 Ω and R2 = 7.9 Ω when they are connected in…

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Q: A wire of diameter 0.600 mm and length 55.0 m has a measured resistance of 1.20 Ω. What is the…

A: The diameter of wire is 0.600 mm, thus the radius and area of wire is, r=d2  =0.600×10-3m1 mm2…

Q: What is the resistance (in Ohms) of a wire made of a material with a resistivity of 4.6× 10-8Ω⋅ m if…

A: Given  The resistivity of the wire is Ꝭ = 4.6×10-8 Ω.m. The length of the wire is l = 2.9 m. The…

Q: What is the equivalent resistance between points a and b when R = 26.1 Q?

A: The given network can be redrawn using the standard method as below,

Q: What is the resistance of an aluminum wire that is 10m long and has a diameter of 3.00 mm?

A: Given Data: Wire length, l=10 m Wire diameter, D=3 mm; therefore, radius R=D2=32=1.5 mm=1.5×10-3 m…

Q: The resistance of a wire is 20 Ω. What will be new resistance, if it is stretched uniformly 8 times…

A: Given:  Resistance, R= 20 Ω  The length of wire is stretches to 8 times its original length  To…

Q: A cube of a material of side 1 cm has a resistance of 0.001 Ω between its opposite faces. If the…

A: GivenSide of cube, l1=1 cmResistance, R1=0.001 ohmSame volume of material hasLength of side, l2=8 cm

Q: How long is a wire made from 100 cm³ of copper if its resistance is 4.00 ohms? The resistivity of…

A: Given data: The volume of the wire is V=100 cm3 The resistance is R=4.00 ohm The resistivity of…

Q: The graph below represents the relationship between the resistance and the length of a of a…

A: We know that the formula of the electric resistance is given as  R = ρLA R is the resistance  L is…

Q: The amount of charge flowing through a particular conducting wire is represented by the equation q…

A: charge through a wire is given by :q(t) = at3 + bt2 + c a = 5 A/s2b = 3 A/s At t= 0.9 seconds ,…

Q: Three resistors: 1.00×102 Ω, 2.50 kΩ, and 4.00 kΩ are connected in parallel, what is this circuit’s…

A: First resistance (R1) = 100 ohm Second resistance (R2) = 2500 ohm Third resistance (R3) = 4000 ohm…

Q: What is the internal resistance of an automobile battery that has an emf of 12.0 V and a terminal…

A: the output voltage expression is,

Q: A copper wire has a resistance of 29 mΩ at 25 degrees C, what is the new resistance at 6 degrees C?

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Q: Some wire of cross-sectional area 1mm? has a resistance of 20a. Determine (a) the resistance of a…

A: Cross sectional A1 = 10-6 m2  Resistance R1 = 20 Ω

Q: vires are made of copper, but have different diameters. If the resistance of wire A is 27 Q/m and…

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Q: What is the resistance in a wire made of aluminum with a length of Ikm and a radius of 2 mm? 1

A: Resistance of  material is given as R=ρLAρ=resistivity of a materialA= cross-section area of the…

Q: What is the resistance of a Nichrome wire at 0.0∘C if its resistance is 140.00 Ω at 11.5∘C? (5…

A: The value of the temperature coefficient of the Nichrome is 0.0004 (C°)-1. The expression for the…

Q: A 9.0 V battery is connected to a bulb whose resistance is 2.0 How many electrons leave the battery…

A: Given Data : The voltage of the battery is given as V = 9.0 V. The resistance of the bulb is given…

Q: An iron wire has a diameter 7.25 mm and resistivity 9.71x 10-8 Qm. What will be the length of this…

A: Answer             (a)  4251.534 m             (b) 2.5 ohm

Q: In the circuit below, if R1=100 ohms and R2=200 ohms and the total resistance is 54.5 ohms, what is…

A: Given-  R1 = 100 ohms  R2 = 200 ohms  Total resistance, Req = 54.5 ohms…

Q: Wire X has a resistance of 18 ohms. Wire Y is made of the same material as X and at the same…

A: Given : Resistance of wire X is Rx=18 ohms, Diameter of Y is three times the diameter of X or,…

Q: The resistivity of this material is 1.52 ohms. What is the resistance?

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Q: If a length of copper wire has a resistance of 100Ω at 20C, what will its resistance be at 50C?

A: The equation for the resistance of copper wire is

Q: What is the internal resistance of an automobile battery that has an emf of 12.0 V and a terminal…

A: Given: Emf of battery, ε=12.0 V Terminal voltage, V=15.0 V Current, I= 4.40 A    To determine…

Q: What is the internal resistance of an automobile battery that has an emf of 12.0 V and a terminal…

A:

Q: What is the resistivity of a wire of 0.76 mm diameter, 2.5 m length, and 71 mΩ resistance?

A: The given values are, d=0.76 mm=0.76×10-3 ml=2.5 mR=71 mΩ=71×10-3 Ωr=d2=0.76×10-3 m2=0.38×10-3 m

Q: What is the resistance (in units of Q) of a wire made of a material with a resistivity of 3.2 x…

A: Given- Resistivity ρ=3.2×10-8Ω.m Length L=49.1 m Diameter d=0.50 mm=0.50×10-3m Radius…

Q: What is the resistance of a 100m length of round copper wire with a radius of 0.3mm?…

A: Given data: Length of copper wire is, L=100 m. Radius of copper wire is, r=0.3 mm=0.3×10-3 m.…

Q: What is the resistance (in Ω) of a 34.5 m long piece of 16 gauge copper wire having a 1.291 mm…

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Q: What is the resistance (in units of 0) of a wire made of a material with a resistivity of 3.2 x 10-8…

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Q: The tungsten filament of a lightbulb has a resistance of 0.07 Ω. Ifthe filament is 27 cm long, what…

A: resistance, R = 0.07 Ω length, L =  27 cm = 0.27 m

Q: A wire 6.20 m long with a diameter of 2.05 mm has a resistance of 0.0290 ohms. What material is the…

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Q: A wire of diameter 0.900 mm and length 60.0 m has a measured resistance of 2.80 Ω. What is the…

A: The resistance of the wire is The area of the wire is

Q: A conductor has a diameter of 2.59 mm. How many meters of this material are needed to yield a…

A: Resistivity of the conductor is ρ=1.77×10-8 Ω/m Diameter of the conductor d=2.59×10-3 m So, radius…

Q: What is the resistance of a copper wire electric extension cord that is 40 m long and has a diameter…

A: Resistance of the copper wire

Q: What is the resistivity of a wire of 1.0 mm diameter, 2.0 m length, and 50 m resistance?

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Q: A copper wire has a resistance of 50 ohms. What will be the strength of another copper wire whose…

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Q: In the circuit below, if resistor R1=25.42Ω, and resistor R2=60.37Ω, what is the equivalent…

A: resistor R1=25.42Ω resistor R2=60.37Ω To find- Equivalent resistance.

Q: Copper wiring in a house usually has a diameter of approximately 1.5mm. What length of copper wire…

A: Given data The diameter of the wire is d= 1.5 mm = 1.5 x 10-3 m The resistance of the wire is R = 1…

Q: An electrical engineer wants to have a copper wire with resistance equal to 5 ohms. If the wire has…

A: Given, Resistance = 5 ohms Radius = 1 mm

Q: A wire of diameter 0.550 mm and length 45.0 m has a measured resistance of 2.80 Ω. What is the…

A: Given diameter of wire = 0.550 mm length of wire = 45.0 m resistance of of = 2.80 Ω We have to find…

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.